Summary
USN-5006-1 fixed several vulnerabilities in PHP. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that PHP incorrectly handled certain PHAR files. A remote
attacker could possibly use this issue to cause PHP to crash, resulting in
a denial of service, or possibly obtain sensitive information. (CVE-2020-7068)
It was discovered that PHP incorrectly handled parsing URLs with passwords.
A remote attacker could possibly use this issue to cause PHP to mis-parse
the URL and produce wrong data. (CVE-2020-7071)
It was discovered that PHP incorrectly handled certain malformed XML data
when being parsed by the SOAP extension. A remote attacker could possibly
use this issue to cause PHP to crash, resulting in a denial of service.
(CVE-2021-21702)
It was discovered that PHP incorrectly handled the pdo_firebase module. A
remote attacker could possibly use this issue to cause PHP to crash,
resulting in a denial of service. (CVE-2021-21704)
It was discovered that PHP incorrectly handled the FILTER_VALIDATE_URL
check. A remote attacker could possibly use this issue to perform a server-
side request forgery attack. (CVE-2021-21705)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | php5 | 5.5.9+dfsg-1ubuntu4.29+esm14 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | php7.0 | 7.0.33-0ubuntu0.16.04.16+esm1 |
Vulnerabilities 5
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Medium 5.3
FILTER_VALIDATE_URL accepts URLs with invalid userinfo
In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14 and 8.0.0, when validating URL with functions like filter_var($url, FILTER_VALIDATE_URL), PHP will accept an URL with invalid password as valid URL. This may lead to functions that rely on URL being valid…
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Medium 5.3
Null Dereference in SoapClient
In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus c…
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Medium 5.0
Multiple vulnerabilities in Firebird client extension
In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using Firebird PDO driver extension, a malicious database server could cause crashes in various database functions, such as getAttribute(), execute(), fetch() and others by ret…
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Medium 4.8
Use of freed hash key in the phar_parse_zipfile function
In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.
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Medium 4.3
Incorrect URL validation in FILTER_VALIDATE_URL
In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to t…